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Isomeric excitation energy for $^{99}$In$^{m}$ from mass spectrometry reveals constant trend next to doubly magic $^{100}$Sn
/ Nies, L. (CERN ; Greifswald U.) ; Atanasov, D. (CERN) ; Athanasakis-Kaklamanakis, M. (CERN ; Leuven U.) ; Au, M. (CERN ; Mainz U.) ; Blaum, K. (Heidelberg, Max Planck Inst.) ; Dobaczewski, J. (Warsaw U.) ; Hu, B.S. (TRIUMF) ; Holt, J.D. (TRIUMF ; McGill U.) ; Karthein, J. (MIT) ; Kulikov, I. (Darmstadt, GSI) et al.
The excitation energy of the 1/2$^-$ isomer in $^{99}$In at ${N=50}$ is measured to be 671(37) keV and the mass uncertainty of the 9/2$^+$ ground state is significantly reduced using the ISOLTRAP mass spectrometer at ISOLDE/CERN. The measurements exploit a major improvement in the resolution of the multi-reflection time-of-flight mass spectrometer. [...]
arXiv:2306.02033.-
2023-07-14 - 13 p.
- Published in : Phys. Rev. Lett. 131 (2023) 022502
Fulltext: 2306.02033 - PDF; Publication - PDF;
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Closing in on $^{100}$Sn: Mass Measurements of the Neutron Deficient N=51-53 Tin Isotopes
/ Nies, L (CERN/University of Greifswald (DE)) ; Blaum, K (Heidelberg, Max Planck Inst.) ; Huang, W J (Advanced Energy Science and Technology Guangdong Laboratory, Huizhou 516003, China) ; Karthein, J (Massachusetts Institute of Technology, Cambridge MA 02139, USA) ; Litvinov, Yu A (GSI Helmholtzzentrum für Schwerionenforschung GmbH, Planckstraße 1, 64291 Darmstadt, Germany) ; Lunney, D (Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France) ; Manea, V (Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France) ; Mougeot, M (Heidelberg, Max Planck Inst.) ; Naimi, S (Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France and RIKEN, Japan) ; Schweiger, Ch (Heidelberg, Max Planck Inst.) et al.
CERN-INTC-2022-031 ; INTC-P-637.
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2022.
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A 410 MHz resonant cavity pickup for heavy ion storage rings
/ Sanjari, M S (Darmstadt, GSI) ; Dmytriiev, D (Darmstadt, GSI ; U. Heidelberg (main)) ; Litvinov, Yu A (Darmstadt, GSI ; U. Heidelberg (main)) ; Gumenyuk, O (CERN ; Darmstadt, GSI) ; Hess, R (Darmstadt, GSI) ; Joseph, R (Darmstadt, GSI) ; Litvinov, S A (Darmstadt, GSI) ; Steck, M (Darmstadt, GSI) ; Stöhlker, Th (Darmstadt, GSI)
An improved design of a longitudinally sensitive resonant Schottky cavity pickup for the heavy ion storage rings of the Facility for Antiproton and Ion Research in Europe (FAIR) project is reported. The new detector has a higher measured Q value of ∼3000 and a higher simulated shunt impedance of 473.3 kΩ. [...]
2020 - 10 p.
- Published in : Rev. Sci. Instrum. 91 (2020) 083303
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Mass measurements of $^{99-101}$In challenge ab initio nuclear theory of the nuclide $^{100}$Sn
/ Mougeot, M. (Heidelberg, Max Planck Inst. ; CERN) ; Atanasov, D. (CERN) ; Karthein, J. (Heidelberg, Max Planck Inst. ; CERN) ; Wolf, R.N. (Sydney U.) ; Ascher, P. (CENBG, Gradignan) ; Blaum, K. (Heidelberg, Max Planck Inst.) ; Chrysalidis, K. (CERN) ; Hagen, G. (Tennessee U. ; Oak Ridge) ; Holt, J.D. (TRIUMF ; McGill U.) ; Huang, W.J. (Heidelberg, Max Planck Inst.) et al.
$^{100}$Sn is of singular interest for nuclear structure. Its closed-shell proton and neutron configuration exhibit exceptional binding and $^{100}$Sn is the heaviest nucleus comprising protons and neutrons in equal number, a feature that enhances the contribution of the short-range, proton-neutron pairing interaction and strongly influences its decay via the weak interaction. [...]
arXiv:2109.10673.-
2021 - 12 p.
- Published in : Nature Phys. 17 (2021) 1099
Fulltext: 2109.10673 - PDF; s41567-021-01326-9 - PDF;
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Measurement of the excitation energy of the 5$^{+}$ isomeric state in $^{128}$Sb for r-process nucleosynthesis
/ Couture, A (Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA) ; Nies, L (CERN, 1211 Geneva 23, Switzerland and Universität Greifswald, Institut für Physik, 17487 Greifswald, Germany) ; Blaum, K (Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany) ; Cakirli, R B (Department of Physics, Istanbul University, 34134, Turkey) ; Casten, R F (Wright Lab, Yale University, New Haven, CT 06520, USA and Michigan State University-FRIB, East Lansing, MI, USA) ; Huang, W J (Advanced Energy Science and Technology Guangdong Laboratory, Huizhou 516003, China) ; Karthein, J (Massachusetts Institute of Technology, Cambridge MA 02139, USA) ; Kulikov, I (GSI Helmholtzzentrum für Schwerionenforschung GmbH, Planckstraße 1, 64291 Darmstadt, Germany) ; Litvinov, Yu A (GSI Helmholtzzentrum für Schwerionenforschung GmbH, Planckstraße 1, 64291 Darmstadt, Germany) ; Lunney, D (Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France) et al.
CERN-INTC-2021-044 ; INTC-P-612.
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2021.
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Masses of short-lived $^{49}$Sc, $^{50}$Sc, $^{70}$As, $^{73}$Br and stable $^{196}$Hg nuclides
/ Kulikov, I. (Darmstadt, GSI) ; Algora, A. (Valencia U., IFIC ; Debrecen, Inst. Nucl. Res.) ; Atanasov, D. (Dresden, Tech. U.) ; Ascher, P. (CENBG, Gradignan) ; Blaum, K. (Heidelberg, Max Planck Inst.) ; Cakirli, R.B. (Istanbul U.) ; Herlert, A. (FAIR, Darmstadt) ; Huang, W.J. (Heidelberg, Max Planck Inst. ; IJCLab, Orsay) ; Karthein, J. (Heidelberg, Max Planck Inst. ; CERN) ; Litvinov, Yu.A. (Darmstadt, GSI) et al.
Mass measurements of $^{49,50}$Sc, $^{70}$As, $^{73}$Br and $^{196}$Hg nuclides produced at CERN's radioactive-ion beam facility ISOLDE are presented. The measurements were performed at the ISOLTRAP mass spectrometer by use of the multi-reflection time-of-flight and the Penning-trap mass spectrometry techniques. [...]
arXiv:2010.15467.-
2020 - 15 p.
- Published in : Nucl. Phys. A 1002 (2020) 121990
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Mass measurement of the proton-rich $^{99}$In and self-conjugate $^{98}$In nuclides for nuclear and astrophysical studies
/ Nies, L (CERN; Greifswald U.) ; Blaum, K (Heidelberg, Max Planck Inst.) ; Karthein, J (CERN; Heidelberg, Max Planck Inst.) ; Kulikov, I (Darmstadt, GSI) ; Litvinov, Yu A (Darmstadt, GSI) ; Lunney, D (IJCLab, CNRS, Orsay) ; Manea, V (IJCLab, CNRS, Orsay) ; Mougeot, M (CERN) ; Ong, W J (LLNL, Livermore; JINA) ; Schatz, H (JINA; Michigan State U., NSCL ; Michigan State U.) et al.
CERN-INTC-2020-025 ; INTC-P-553.
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2020.
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First glimpse of the $N=82$ shell closure below $Z=50$ from masses of neutron-rich cadmium isotopes and isomers
/ Manea, V. (CERN ; Heidelberg, Max Planck Inst. ; Leuven U.) ; Karthein, J. (CERN ; Heidelberg, Max Planck Inst.) ; Atanasov, D. (Dresden, Tech. U.) ; Bender, M. (IP2I, Lyon) ; Blaum, K. (Heidelberg, Max Planck Inst.) ; Cocolios, T.E. (Leuven U.) ; Eliseev, S. (Heidelberg, Max Planck Inst.) ; Herlert, A. (FAIR, Darmstadt) ; Holt, J.D. (TRIUMF) ; Huang, W.J. (CSNSM, Orsay) et al.
We probe the $N=82$ nuclear shell closure by mass measurements of neutron-rich cadmium isotopes with the ISOLTRAP spectrometer at ISOLDE-CERN. The new mass of $^{132}$Cd offers the first value of the $N=82$, two-neutron shell gap below $Z=50$ and confirms the phenomenon of mutually enhanced magicity at $^{132}$Sn. [...]
arXiv:2001.05075.-
2020-03-05 - 6 p.
- Published in : Phys. Rev. Lett. 124 (2020) 092502
Fulltext: PhysRevLett.124.092502 - PDF; 2001.05075 - PDF;
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Evaluation of high-precision atomic masses of A ∼ 50-80 and rare-earth nuclides measured with ISOLTRAP
/ Huang, W J (CSNSM, Orsay ; Heidelberg, Max Planck Inst.) ; Atanasov, D (CERN) ; Audi, G (CSNSM, Orsay) ; Blaum, K (Heidelberg, Max Planck Inst.) ; Cakirli, R B (Istanbul U.) ; Herlert, A (FAIR, Darmstadt) ; Kowalska, M (CERN) ; Kreim, S (Heidelberg, Max Planck Inst. ; CERN) ; Litvinov, Yu A (Darmstadt, GSI) ; Lunney, D (CSNSM, Orsay) et al.
High-precision mass measurements of stable and beta-decaying nuclides $^{52-57}$Cr, $^{55}$Mn, $^{56,59}$Fe, $^{59}$Co, $^{75, 77-79}$Ga, and the lanthanide nuclides $^{140}$Ce, $^{140}$Nd, $^{160}$Yb, $^{168}$Lu, $^{178}$Yb have been performed with the Penning-trap mass spectrometer ISOLTRAP at ISOLDE/CERN. The new data are entered into the Atomic Mass Evaluation and improve the accuracy of masses along the valley of stability, strengthening the so-called backbone. [...]
2019 - 9 p.
- Published in : Eur. Phys. J. A 55 (2019) 96
Fulltext (Open Access version from publisher): PDF;
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